My test results last night:

8:00 pm
FC: .5
CC: 0
TC: .5
PH: 7.5
ALK: 140
CYA: 30

I dumped in 2 gallons of 5.25% bleach and tested again 1 hour later:

9:00 pm
FC: 3
CC: 0
TC: 3
PH: 7.5
ALK: 140
CYA: 30

This morning I tested and got the following results:

7:30 am
FC: 1
CC: 0
TC: 1
PH: 7.5
ALK: 140
CYA: 30

Is the chlorine level supposed to drop that fast from last night to this morning, or am I doing something wrong? Also, I run the pump at night and turn it off during the day and don't add any chlorine during the day. Is this ok? Should I be adding chlorine in the morning instead of the evening when I get home?